CVE-2024-41072Public exploit

Local kernel crash via oversized channel count

Published Jul 29, 2024 · Updated May 11, 2026

Out-of-bounds read in cfg80211 in affected Linux kernel releases allows local users to crash the system through a crafted wireless scan ioctl. cfg80211_wext_siwscan trusts the user-supplied num_channels field and passes entries beyond the fixed channel list to cfg80211_wext_freq, which reads outside the request allocation. Exploitation requires local low-privileged access and a wireless device exposing the legacy SIOCSIWSCAN path; the demonstrated consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in cfg80211 in affected Linux kernel releases allows local users to crash the system through a crafted wireless scan ioctl. cfg80211_wext_siwscan trusts the user-supplied num_channels field and passes entries beyond the fixed channel list to cfg80211_wext_freq, which reads outside the request allocation. Exploitation requires local low-privileged access and a wireless device exposing the legacy SIOCSIWSCAN path; the demonstrated consequence is a kernel crash.

The record

CVE
CVE-2024-41072
Published
Jul 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.32
  2. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <001120ff0c9e3557dee9b5ee0d358e0fc189996f
  3. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <35cee10ccaee5bd451a480521bbc25dc9f07fa5b
  4. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <6295bad58f988eaafcf0e6f8b198a580398acb3b
  5. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <6ef09cdc5ba0f93826c09d810c141a8d103a80fc
  6. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <a43cc0558530b6c065976b6b9246f512f8d3593b
  7. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <b02ba9a0b55b762bd04743a22f3d9f9645005e79
  8. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <de5fcf757e33596eed32de170ce5a93fa44dd2ac
  9. Affected versionversion=b2e3abdc708f8c0eff194af25362fdb239abe241 <fe9644efd86704afe50e56b64b609de340ab7c95

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.32; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <001120ff0c9e3557dee9b5ee0d358e0fc189996f; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <35cee10ccaee5bd451a480521bbc25dc9f07fa5b; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <6295bad58f988eaafcf0e6f8b198a580398acb3b; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <6ef09cdc5ba0f93826c09d810c141a8d103a80fc; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <a43cc0558530b6c065976b6b9246f512f8d3593b; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <b02ba9a0b55b762bd04743a22f3d9f9645005e79; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <de5fcf757e33596eed32de170ce5a93fa44dd2ac; version=b2e3abdc708f8c0eff194af25362fdb239abe241 <fe9644efd86704afe50e56b64b609de340ab7c95

Published CVSS scores

5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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